Auto Caption Generator — Add Dynamic Captions to Videos

Yes. Filmora's built-in Dynamic Caption tool automatically generates captions from any video or audio file. Just import your video to the timeline, open Titles → AI Captions → Dynamic Caption, click Generate. Captions appear on the timeline within 30-60 seconds, synchronized to speech with animated effects already applied.

Generating new captions uses AI credits (a starter pack is included free when you install Filmora). Once captions are generated, all editing — text changes, 100+ templates, 120+ animations, 13 keyframe properties, 3D spatial offset, multi-track styling, translation refinement — is completely free and unlimited.

Filmora's Dynamic Caption delivers up to 99% transcription accuracy for clear audio, with smart sentence segmentation that aligns subtitle breaks to natural speech pauses. The AI handles multiple speakers, accents, and technical terminology. Most users only need minor edits; you can use bulk find-and-replace to quickly refine terminology across the entire video.

Transcription supports 50+ source languages with Auto-Detect Language enabled by default (no manual setup needed), and you can translate captions to 30+ target languages in a single click, including Spanish, French, German, Hindi, Marathi, Bengali, Tamil, Portuguese, Japanese, Korean, Arabic (with RTL support), and more.

Dynamic Caption includes two independent highlight modes you can toggle on/off. Active Words: each word highlights one-by-one in karaoke style as it's spoken, synced to audio rhythm — ideal for short-form social videos and lyric-style captions. Key Words: AI automatically detects important words and phrases (subject terms, emphasized phrases) and highlights them distinctly. Both can be enabled together or used independently. Customize highlight colors, animations, and keyframe motion in the property panel.

Absolutely. After generation, captions come with a built-in font template applied. From there you can access the 6-tab property panel: pick from 100+ Templates, choose from 120+ Animation presets (In/Out/Loop across Motion & Path, Mask & Reveal, Fluent, Build, and Stylized categories), adjust font/color/size/background, apply 13 text keyframes, add 3D spatial offset (0-360°), use Bubble caption styles, and apply Track-level Apply to All for safe batch styling across multi-track projects.

For caption-only translation in 30+ languages, use Dynamic Caption's built-in Translate To option — timing and natural segmentation are preserved across languages, and the translation generates as a synchronized auxiliary subtitle track displayed alongside the original. The original-language caption keeps its full Dynamic Caption styling (Active Words, animations, templates); the translated track shows as clean reference text. If you need full video dubbing with voice cloning and lip-sync of the actual speaker, use Filmora's separate AI Video Translation feature, which generates spoken audio in the target language matched to mouth movements.